Coin selector



March 18, 1930. J. E. OLVIS 1,750,686

com SELECTOR Filed Jan. 28, 1929 3 Sheets-Sheet 1 INVENTOR. Jbmes E. O/v/Is A TTORNEYS March 18, 1930. J. E. OLVIS 1,750,686

' COIN SELECTOR Filed Jan. 28, 1929 3 Sheets-Sheet 2 gi INVENTORI "liil James 5 0/;

A TTORNEYS March 18, 1930. o v s 1,750,686

com SELECTOR Filed Jan. 28, 1929 3 Sheets-Sheet 3 gig: 6.

ATTORNEYS Patented Mar. 18, 1930 JAMES E. OLVIS, 01 LOS ANGELES, CALIFORNIA COIN SELECTOR Application filed January 28, 1929. Serial No. 335,501.

This invention relates to a fraud preventive device and pertains more particularly to a device for separating bogus from proper coins. The present invention is particularly adaptable for coin controlled machines as a guard against the operation thereof by bogus coins, but as will be obvious is not limited to use therewith. A common species of fraud resides in the operation of coin con trolled machines by coins having the following characteristics: perforated coins otherwise proper; undersized and underweight coins; proper sized coins of improper material not possessing proper resiliency; and proper sized coins of proper resiliency but of magnetic material, such as iron or steel.

The objects of this invention-are to provide a device which has passages for the travel therethrough of coin and will divert from the normal path of travel those coins which are either of improper weight, improper resiliency, or of magnetic materials. In addition to the broader objects of this invention, there are certain details of design contributing to efiiciency and certainty of operation, simplicit-y in structure, compactness, and economy of manufacture.

These objects together with other objects and corresponding accomplishments are obtained by means of the embodiment of my invention illustrated in the accompanying drawing, in which Fig. 1 is a front elevation of a selector constructed in accordance with my invention; Fig. 2 is a side elevation thereof; Fig. 3 is a rear elevation showing the casing removed; Figs, 4 and 5 are sections as seen on the lines correspondingly numbered in Fig. 3; and Fig. 6 is a front elevation with the casing removed.

The present structure disclosed herein is shown merely in the form of a selector delivering bogus coins to one exit and proper coins to another exit. 'Itwill be obvious that by mechanical variation, the structure may be adapted to deliver proper coins to a coin controlled machine. the device comprises a base 7 for supporting the structure. There is a front plate 8 and a. back plate 9 connected together and spaced As shown herein to provide coin passages and a frame for the various elements of the device. Secured to the front plate is a cover plate 10 having a recess at its marginal juncture with the front plate to provide achannel to receive an interned tongue on a housing 11 which is slipped over the plate and covers the rear face of the frame. In one side of the housing is a proper coin exit opening 12 for registration with an exit passage in the frame.

The front and back plates are spaced by spacers 13, 14, 15, 16, 17, 18 to form openings and passages for coins. In the front plate is an inlet for coins marked19. A chamber 20 is formed between the plates for mounting a tiltable classifier therein. This classifier is fulcrumed on pins 21 journalled in the front and back plates. The classifier is of channel form having a counterweight portion 22 and a mouth or intake'portion 23. Normally the classifier is disposed in the position shown in Fig. 3, the'intake end being registered with the inlet passage. The discharge end through the counterweight portion is in registration with an exit passage 24 in the casing, the member 16 serving as a deflector to direct coins above the rejection exit opening to the front plate into a trough 25. Below the inlet is a vertical coin chute 26 for the descent of coins by gravity therethrough. The 'element 15 serves to limit the tilting of the classifier as best shown in Fig. 6 and also to form a wall of the chute 26 which constitutes a primary passage for coins. At the bottom of the primary chute is a spacer 18 formed to act as a rebound buffer or anvil for coins to strike and so inclined as to cause such 001118 to bounce laterally.

A re ection passage 28 communicating v with the trough 25 is provided adjacent the buffer, and remote from the rejection passage is a reception passage 29. The buffer is made of such material that a'coin ofproper resiliency will in its descent strike the buffer 18 and be hurled laterally so as to hurdle the rejection passage and be delivered to the reception passage. However, a coin-lacking proper resiliency will fallshort of reachin 'the reception passage and be delivered to the rejection passage. It is a common thing to steel.

make slugs of the proper size from iron or hurdle the rejection passage. In order to prevent such slugs from reaching the reception passage, I have provided a magnetic retarder so disposed as to retard the acceleration of coins in their descent if they are of magnetic material. In the present instance, a permanent magnet 30 is attached to the rear plate.

Suppose a proper coin is introduced into the inlet 19. It will be directed by the projection 27 into the mouth of the classifier. Its weight will be sufiicient to cause the classifier to tilt to the position shown in Fig. 6, and the coin is then dropped into the primary passage. The path of such a coin is indicated by the dash lines and the arrows in Fig. 6. A coin strikes the anvil 18 and is hurled laterally into the reception passage. The position of such a coin as it hurdles the rejection passage is indicated by P. If the coin introduced is of the proper material and proper size, but is perforated, it will be underweight. Such coins and all underweight coins will be of insufficient weight to cause the classifier to tilt, and will roll along the channel therein, through the counterweight and be delivered to the secondary passage 24, being deflected by the member 16 and dropped into the rejection passage. If the coin is of proper weight and proper, resiliency, it will be delivered by tilting of the classifier through the primary passage, being of magnetic material, it will be retarded by the influence of the magnetic field, and its impact on the anvil 18 will not be suflicient to cause it to be hurled over the rejection passage. The position of such a bogus coin is indicated by B. It may be that the coin is of proper weight and improper material, which is non-magnetic. In this case, if the resiliency is not sufiicient, the coin will be hurled into the rejection passage. The classifier not only weighs the coin, but insures its delivery to the intake end of the primary passage at a uniform velocity, in all cases. It is obvious that the initial speed of the coin as it enters the primary passage is an important factor in the amount of rebound from the anvil. If the classifier were absent from the structure and the coin delivered directly from the inlet into the primary passage, many proper coins would be rejected. The person introducing a coin into the inlet presses upon the latter and varies by the pressure and release of that pressure the speed with which the coin enters. With the classifier, the coin starts in its descent at zero speed and is initially arrested by the action of the counterweight which is uniform in every instance. When the coin drops from the clasisfier, it will in every instance have the same initial speed so that proper rebound is assured. In

order to maintain the surface of the anvil These have suflicient resiliency to 1 clean an opening 31 is provided in the cas- What I claim is 1. An apparatus of the class described including a coin inlet, a primary passage in registration with the inlet for the descent of a coin therethrough by gravity, a, tiltable weight classifier having a channel for passage of coins therethrough with its intake end disposed intermediate said inlet and primary passage to arrest coins introduced therein and to be tilted by a proper coin to deliver it to said primary passage, a secondary passage in re istration with the outlet' of said channel or reception of underweight coins, a magnetic retarder disposed to influence the acceleration of a coin travelling through said primary passage, a rebound buffer disposed in the path of travel of a descending coin in said primary passage so as to hurl the coin laterally, and spaced rejection and reception passages disposed laterally of said buffer, said rejection passage being adjacent to said buffer and said reception passage remote from said buffer whereby a proper coin will be hurled over said rejection passage into said reception passage and an improper coin will fall short of said reception passage and be hurled into said rejection passage.

2. An apparatus of the class described including a coin inlet, a primary passage in registration with the inlet for the descent of a coin therethrough by gravity, a tiltable weight classifier having a channel for passage of coins therethrough with its intake end disposed intermediate said inlet and primary passage to arrest coins introduced therein and to be tilted by a proper coin to deliver it to said primary passage, a secondary passage in registration with the outlet of said channel for reception of underweight coins, a rebound buffer disposed in the path of travel of a descending coin in said primary passage so as to hurl the coin laterally, and spaced rejection and reception passages disposed laterally of said buffer, said rejection passage being adjacent to and said reception passage remote from said buffer whereby a proper coin will be hurled over said rejection passage into said reception passage and an improper coin will fall short of said reception passage and be hurled into said rejection passage.

In witness that I claim the foregoing I have hereunto subscribed my name this 10th day of December, 1928.

JAMES E. OLVIS. 

